dpdma_read
desc_id = dpdma_read(chan->reg, XILINX_DPDMA_CH_DESC_ID)
dpdma_read(chan->reg, XILINX_DPDMA_CH_DESC_START_ADDRE),
dpdma_read(chan->reg, XILINX_DPDMA_CH_DESC_START_ADDR));
dpdma_read(chan->reg, XILINX_DPDMA_CH_PYLD_CUR_ADDRE),
dpdma_read(chan->reg, XILINX_DPDMA_CH_PYLD_CUR_ADDR));
status = dpdma_read(xdev->reg, XILINX_DPDMA_ISR);
error = dpdma_read(xdev->reg, XILINX_DPDMA_EISR);
dpdma_write(base, offset, dpdma_read(base, offset) & ~clr);
dpdma_write(base, offset, dpdma_read(base, offset) | set);
dpdma_read(chan->reg, XILINX_DPDMA_CH_STATUS));